45545657 has 2 divisors, whose sum is σ = 45545658. Its totient is φ = 45545656.

The previous prime is 45545653. The next prime is 45545663. The reversal of 45545657 is 75654554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39175081 + 6370576 = 6259^2 + 2524^2 .

It is a cyclic number.

It is not a de Polignac number, because 45545657 - 2² = 45545653 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45545653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772828 + 22772829.

It is an arithmetic number, because the mean of its divisors is an integer number (22772829).

Almost surely, 2^45545657 is an apocalyptic number.

It is an amenable number.

45545657 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545657 is an equidigital number, since it uses as much as digits as its factorization.

45545657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 41.

The square root of 45545657 is about 6748.7522550469. The cubic root of 45545657 is about 357.1212204111.

The spelling of 45545657 in words is "forty-five million, five hundred forty-five thousand, six hundred fifty-seven".